61342761 has 4 divisors (see below), whose sum is σ = 81790352. Its totient is φ = 40895172.

The previous prime is 61342751. The next prime is 61342777. The reversal of 61342761 is 16724316.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61342761 - 2¹⁹ = 60818473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61342741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10223791 + ... + 10223796.

It is an arithmetic number, because the mean of its divisors is an integer number (20447588).

Almost surely, 2^61342761 is an apocalyptic number.

It is an amenable number.

61342761 is a deficient number, since it is larger than the sum of its proper divisors (20447591).

61342761 is a wasteful number, since it uses less digits than its factorization.

61342761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20447590.

The product of its digits is 6048, while the sum is 30.

The square root of 61342761 is about 7832.1619620639. The cubic root of 61342761 is about 394.3856518396.

The spelling of 61342761 in words is "sixty-one million, three hundred forty-two thousand, seven hundred sixty-one".